EP 2738945 A1 20140604 - COMPENSATION DEVICE, SIGNAL GENERATOR, AND WIRELESS COMMUNICATION DEVICE
Title (en)
COMPENSATION DEVICE, SIGNAL GENERATOR, AND WIRELESS COMMUNICATION DEVICE
Title (de)
KOMPENSATIONSVORRICHTUNG, SIGNALGENERATOR UND DRAHTLOSE KOMMUNIKATIONSVORRICHTUNG
Title (fr)
DISPOSITIF DE COMPENSATION, GÉNÉRATEUR DE SIGNAL ET DISPOSITIF DE COMMUNICATION SANS FIL
Publication
Application
Priority
- JP 2011163344 A 20110726
- JP 2011163374 A 20110726
- JP 2012068706 W 20120724
Abstract (en)
A compensation apparatus compensates a quadrature-demodulated signal output from a quadrature demodulator 5 that performs quadrature demodulation by using a signal of a carrier frequency fc, by removing an image component caused by the quadrature demodulator 5 from the quadrature-demodulated signal. The compensation apparatus includes a signal generator 10 that generates a reference signal having a predetermined bandwidth in a reception band, and provides the reference signal to an input side of the quadrature demodulator 5. The reference signal includes a frequency band that is biased to either a higher-frequency side or a lower-frequency side with respect to the carrier frequency.
IPC 8 full level
H04B 1/16 (2006.01); H03D 7/18 (2006.01); H03L 7/12 (2006.01); H04B 1/10 (2006.01); H04B 1/26 (2006.01); H04B 17/20 (2015.01); H04L 27/14 (2006.01)
CPC (source: EP US)
H03L 7/093 (2013.01 - US); H03L 7/099 (2013.01 - US); H03L 7/104 (2013.01 - EP US); H04B 1/10 (2013.01 - EP US); H04B 1/28 (2013.01 - EP US); H04L 7/0331 (2013.01 - US); H04L 27/3455 (2013.01 - US); H04L 27/38 (2013.01 - EP US); H04L 27/3863 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2738945 A1 20140604; EP 2738945 A4 20150506; EP 2738945 B1 20160831; JP 5846204 B2 20160120; JP WO2013015279 A1 20150223; US 2014140444 A1 20140522; US 2015222469 A1 20150806; US 9197263 B2 20151124; US 9281989 B2 20160308; WO 2013015279 A1 20130131
DOCDB simple family (application)
EP 12817875 A 20120724; JP 2012068706 W 20120724; JP 2013525725 A 20120724; US 201214131238 A 20120724; US 201514689398 A 20150417